Search Results - "Shinkarev, Vladimir P"

Oxygen Evolution in Photosynthesis: Simple Analytical Solution for the Kok Model by Shinkarev, Vladimir P.

“…The light-induced oxidation of water by Photosystem II (PS II) of higher plants, algae, and cyanobacteria, is the main source of atmospheric oxygen. The…”
Get full text

All-Atom Molecular Dynamics Simulations Reveal Significant Differences in Interaction between Antimycin and Conserved Amino Acid Residues in Bovine and Bacterial bc1 Complexes by Kokhan, Oleksandr, Shinkarev, Vladimir P.

“…Antimycin A is the most frequently used specific and powerful inhibitor of the mitochondrial respiratory chain. We used all-atom molecular dynamics (MD)…”
Get full text

Intermonomer electron transfer in the bc1 complex dimer is controlled by the energized state and by impaired electron transfer between low and high potential hemes by Shinkarev, Vladimir P, Wraight, Colin A

“…The cytochrome bc(1) complex (commonly called Complex III) is the central enzyme of respiratory and photosynthetic electron transfer chains. X-ray structures…”
Get full text

Flash-Induced Oxygen Evolution in Photosynthesis: Simple Solution for the Extended S-State Model that includes Misses, Double-Hits, Inactivation, and Backward-Transitions by Shinkarev, Vladimir P.

“…Flash-induced oxygen evolution in higher plants, algae, and cyanobacteria exhibits damped period-four oscillations. To explain such oscillations, Kok suggested…”
Get full text

Spectroscopic Evidence of the Role of an Axial Ligand Histidinate in the Mechanism of Adrenal Cytochrome b 561 by da Silva, Giordano F. Z, Shinkarev, Vladimir P, Kamensky, Yury A, Palmer, Graham

“…Adrenal cytochrome b 561 (AdCytb) is the prototype of a widespread protein family that specializes in delivering electrons donated by ascorbic acid for…”
Get full text

The Modified Q-cycle Explains the Apparent Mismatch between the Kinetics of Reduction of Cytochromes c1 and bH in the bc1 Complex by Crofts, Antony R., Shinkarev, Vladimir P., Kolling, Derrick R.J., Hong, Sangjin

“…Crystallographic structures of the bc1 complex from different sources have provided evidence that a movement of the Rieske iron-sulfur protein (ISP) extrinsic…”
Get full text

Binding of Imidazole to the Heme of Cytochrome c₁ and Inhibition of the bc₁ Complex from Rhodobacter sphaeroides: II. KINETICS AND MECHANISM OF BINDING by Kokhan, Oleksandr, Shinkarev, Vladimir P, Wraight, Colin A

“…The kinetics of imidazole (Im) and N-methylimidazole (MeIm) binding to oxidized cytochrome (cyt) c₁ of detergent-solubilized bc₁ complex from Rhodobacter…”
Get full text

Binding of Imidazole to the Heme of Cytochrome c₁ and Inhibition of the bc₁ Complex from Rhodobacter sphaeroides: I. EQUILIBRIUM AND MODELING STUDIES by Kokhan, Oleksandr, Shinkarev, Vladimir P, Wraight, Colin A

“…We have used imidazole (Im) and N-methylimidazole (MeIm) as probes of the heme-binding cavity of membrane-bound cytochrome (cyt) c₁ in detergent-solubilized…”
Get full text

Binding of Imidazole to the Heme of Cytochrome c1 and Inhibition of the bc1 Complex from Rhodobacter sphaeroides by Kokhan, Oleksandr, Shinkarev, Vladimir P., Wraight, Colin A.

“…We have used imidazole (Im) and N-methylimidazole (MeIm) as probes of the heme-binding cavity of membrane-bound cytochrome (cyt) c1 in detergent-solubilized…”
Get full text

Binding of Imidazole to the Heme of Cytochrome c1 and Inhibition of the bc1 Complex from Rhodobacter sphaeroides by Kokhan, Oleksandr, Shinkarev, Vladimir P., Wraight, Colin A.

“…The kinetics of imidazole (Im) and N-methylimidazole (MeIm) binding to oxidized cytochrome (cyt) c1 of detergent-solubilized bc1 complex from Rhodobacter…”
Get full text

A Kinetic Assessment of the Sequence of Electron Transfer from FX to FA and Further to FB in Photosystem I: The Value of the Equilibrium Constant between FX and FA by Shinkarev, Vladimir P., Vassiliev, Ilya R., Golbeck, John H.

“…The x-ray structure analysis of photosystem I (PS I) crystals at 4-Angstrom resolution (Schubert et al., 1997, J. Mol. Biol. 272:741-769) has revealed the…”
Get full text

Modeling of the P700+ charge recombination kinetics with phylloquinone and plastoquinone-9 in the A1 site of photosystem I by Shinkarev, Vladimir P, Zybailov, Boris, Vassiliev, Ilya R, Golbeck, John H

“…Light activation of photosystem I (PS I) induces electron transfer from the excited primary electron donor P700 (a special pair of chlorophyll a/a' molecules)…”
Get full text

His92 and His110 selectively affect different heme centers of adrenal cytochrome b561 by Liu, Wen, Rogge, Corina E., da Silva, Giordano F.Z., Shinkarev, Vladimir P., Tsai, Ah-Lim, Kamensky, Yury, Palmer, Graham, Kulmacz, Richard J.

Get full text

Quantitative Analysis of the Effects of Intrathylakoid pH and Xanthophyll Cycle Pigments on Chlorophyll a Fluorescence Lifetime Distributions and Intensity in Thylakoids by Gilmore, Adam M, Shinkarev, Vladimir P, Hazlett, Theodore L, Govindjee

“…The xanthophyll cycle-dependent dissipation of excitation energy in higher plants is one of the most important regulatory and photoprotective mechanisms in…”
Get full text

In Situ Kinetics of Cytochromes c1 and c2 by SHINKAREV, Vladimir P., CROFTS, Antony R., WRAIGHT, Colin A.

“…In Rhodobacter sphaeroides chromatophores, cytochromes (cyt) c(1) and c(2) have closely overlapping spectra, and their spectral deconvolution provides a…”
Get full text

In Situ Kinetics of Cytochromes c 1 and c 2 by Shinkarev, Vladimir P, Crofts, Antony R, Wraight, Colin A

“…In Rhodobacter sphaeroides chromatophores, cytochromes (cyt) c 1 and c 2 have closely overlapping spectra, and their spectral deconvolution provides a…”
Get full text

Interactions of quinone with the iron–sulfur protein of the bc1 complex: is the mechanism spring-loaded? by Crofts, Antony R, Shinkarev, Vladimir P, Dikanov, Sergei A, Samoilova, Rimma I, Kolling, Derrick

“…Since available structures of native bc 1 complexes show a vacant Q o-site, occupancy by substrate and product must be investigated by kinetic and…”
Get full text

Modulation of the Midpoint Potential of the [2Fe−2S] Rieske Iron Sulfur Center by Qo Occupants in the bc1 Complex by SHINKAREV, Vladimir P., KOLLING, Derrick R. J., MILLER, Tim J., CROFTS, Antony R.

“…Following addition of myxothiazol to antimycin-treated chromatophores from Rhodobacter sphaeroides poised at an ambient redox potential (E(h)) of approximately…”
Get full text

The Electric Field Generated by Photosynthetic Reaction Center Induces Rapid Reversed Electron Transfer in the bc 1 Complex by Shinkarev, Vladimir P, Crofts, Antony R, Wraight, Colin A

“…The cytochrome bc 1 complex is the central enzyme of respiratory and photosynthetic electron-transfer chains. It couples the redox work of quinol oxidation and…”
Get full text

Insight into the relationship of chlorophyll a fluorescence yield to the concentration of its natural quenchers in oxygenic photosynthesis by Shinkarev, V.P, Govindjee

“…Fluorescence of chlorophyll a (Chla) is a noninvasive and very sensitive intrinsic probe of photosynthesis. It monitors the composition and organization of the…”
Get full text